Untitled

保 加 利 亚 南 部 不 同 海 拔 梯 度 的 晚 冰 期 / 全 新
世 植 被 转 变 = Elevational gradients during
the Late-Glacial/Holocene vegetational transition
in southern Bulgaria. ( 英 文 ). Stefanova V;
Lazarova M; Wright H E. Vegetation History
and Archaeobotany, 2006, 15(4): 333-343
The Late Glacial and early-Holocene vegetational
history of a newly dated pollen and
macrofossil diagram from Besbog, a cirque
lake at 2250 m just above the forest limit in
the Pirin Mountains of southwestern Bulgaria,
is compared with a newly dated pollen diagram
for the mire Shiroka Polyana at 1400 m
in the conifer forest of the nearby Rhodope
Mountains in order to investigate the chronology
of major changes in the vegetation at different
elevations. In the Lake Besbog record
the non-arboreal pollen assemblage of the
Late Glacial changed abruptly to that of
Betula, Quercus and other deciduous types.
The date for this change is about 11.6 ka cal
B.P. The Quercus assemblage may be composed
of pollen blown from intermediate elevations,
to which deciduous forest had expanded
because of higher summer temperatures
related to high summer insolation. At
Shiroka Polyana (1400 m) in the modern conifer
belt, a similar change did not occur until
about 8.8 ka cal B.P. The persistence of the dry
steppe or steppe forest in the early Holocene
at this lower site can also be attributed to high
summer insolation. Thus as atmospheric temperature
increased at the end of the Late Glacial,
deciduous forests expanded first at intermediate
elevations in the Pirin Mountains and
only later in the Rhodope Mountains at lower
elevations as summer insolation decreased.
2008010069
墨 西 哥 东 南 部 5000 年 来 孢 粉 记 录 的 热 带 森
林 和 红 树 林 历 史 及 对 海 面 上 升 的 意 义 =
Tropical forest and mangrove history from
southeastern Mexico: a 5000 yr pollen record
and implications for sea level rise. ( 英 文 ).
Torrescano N; Islebe G A. Vegetation History
and Archaeobotany, 2006, 15(3): 191-195
A 250 cm long core from El Palmar, a
swamp area located along the Rio Hondo river
in the south of the Yucatan Peninsula, near the
Belizean border, reveals the environmental
history of the mangrove and tropical forest of
the last 5000 years. The period between 5000
and 4600 B.P. shows sandy deposits, which
form the early infill and development of the
swamp. A medium-statured tropical forest
covered the area and members of the
Moraceae and Fabacaeae dominated this early
forest. The period between 4600 and 4000 B.P.
presents a clear change to a mangrove system
with Conocarpus erecta and Rhizophora mangle
as dominant trees. This vegetational
change is due to flooding of the Rio Hondo
river, which deposits sediments of high salinity
due to higher sea-level. The mediumstatured
forest became established at some
distance from the swamp area. After 4400 B.P.
C. erecta appears as the dominant mangrove
species and the R. mangle stands are less predominant
in the area. The tropical forest was
close to the swamp area and was mainly composed
of members of the Moraceae, Arecaceae
and Fabaceae as dominant taxa of this vegetational
mosaic.
2008010070
英 国 铁 器 时 代 农 作 物 生 产 和 消 费 的 再 分 析
及 其 含 义 = A re-analysis of agricultural production
and consumption: implications for
understanding the British Iron Age. ( 英 文 ).
Veen van der M; Jones G. Vegetation History
and Archaeobotany, 2006, 15(3): 217-228
Patterning in the carbonized seed assemblages
from Iron Age sites in Britain has led to
the development of several explanatory models.
The most influential of these, by Martin
Jones, proposed that grain-rich assemblages
represent producer sites and weed-/chaff-rich
assemblages consumer sites. The assumptions
underlying this model and the method of constructing
the diagrams are discussed and a new
approach is put forward, stressing the need for
appropriate levels of analysis and interpretation.
It is concluded that a predominance of
grain-rich samples is far more likely to be an
indicator of the scale of production and consumption,
than a means of distinguishing between
the two. A review of the evidence from
Iron Age Britain indicates that grain-rich site
assemblages primarily occur in the south of
the country, and frequently co-occur with pits,
used for the storage of surplus grain. Moreover,
such pits are concentrated in hillforts. It
is proposed that the grain stored in such pits
may have been used in large communal feasts
and that the hillforts functioned as locations
for feasting.
2008010071
旧 房 子 中 干 燥 植 物 遗 存 的 考 古 分 析 价 值 :
农 作 物 杂 草 组 合 的 研 究 方 法 及 解 释 = The
value of the archaeobotanical analysis of desiccated
plant remains from old buildings:
methodological aspects and interpretation of
crop weed assemblages. ( 英 文 ). Ernst M;
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